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我使用 Cloud Storage 通过获取文件的下载 url 来上传任何文件。根据云存储文档的建议代码如下：

获取下载网址

上传文件后，您可以通过调用 StorageReference 上的 getDownloadUrl() 方法获取下载文件的 URL：

final StorageReference ref = storageRef.child("images/mountains.jpg");
uploadTask = ref.putFile(file);

Task<Uri> urlTask = uploadTask.continueWithTask(new Continuation<UploadTask.TaskSnapshot, Task<Uri>>() {
    @Override
    public Task<Uri> then(@NonNull Task<UploadTask.TaskSnapshot> task) throws Exception {
        if (!task.isSuccessful()) {
            throw task.getException();
        }

        // Continue with the task to get the download URL
        return ref.getDownloadUrl();
    }
}).addOnCompleteListener(new OnCompleteListener<Uri>() {
    @Override
    public void onComplete(@NonNull Task<Uri> task) {
        if (task.isSuccessful()) {
            Uri downloadUri = task.getResult();
        } else {
            // Handle failures
            // ...
        }
    }
});

当我将此代码添加到我的项目中时，Android Studio 编译器会给我“未经检查的调用”警告。我只是想逃避这个警告。我怎么能逃脱？编译器警告结果如下：

  where TResult is a type-variable:
    TResult extends Object declared in class Task
/Users/macbook/Documents/AndroidStudioProjects/Instagram/app/src/main/java/com/app/instagram/PostActivity.java:233: warning: [unchecked] unchecked call to <ContinuationResultT>continueWithTask(Continuation<ResultT,Task<ContinuationResultT>>) as a member of the raw type StorageTask
                            uploadTask.continueWithTask(new Continuation<UploadTask.TaskSnapshot, Task<Uri>>() {
                                                       ^

感谢您的帮助...

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